JPS6229546Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a device for preventing falls of elevating objects.It has a simple structure and is less prone to malfunctions.
It is characterized by being able to enhance safety.

Conventionally, parking devices have been constructed with two levels of pallets for placing cars to form an elevating body, which is raised and lowered along fixed pillars installed at the four corners of the bottom of the underground storage area, or the applicant has developed an underground storage area. There has been proposed a device in which the elevating body of a two-stage structure is disposed between cross beams that are horizontally suspended at the upper ends of opposing walls, and the elevating body is raised and lowered by a chain driven by a motor.

If the elevating body raised by the above-mentioned device falls due to some kind of malfunction in the device, it is extremely dangerous as it will not only damage the device but also cause personal injury.

In order to prevent the above-mentioned danger, the present invention has a lock lever protruding into the elevating path of the elevating object when the elevating object is ascending, so that the elevating object will not fall even if a failure occurs, and the lock lever will completely return when the elevating object is lowered. This feature is characterized in that the elevating body can be lowered after confirming the following.

A two-level parking device will be described below as an embodiment of the present invention and an example using the present invention.

Underground storage part a of a double-level parking device using the present invention
It is constructed by excavating the ground surface as appropriate, and it is constructed by providing walls b, b' of lengths corresponding to the number of continuous walls made of concrete or the like on both sides.

Next, cross beams 1 and 1a are hung horizontally at the upper ends of the opposing walls b and b' at a required interval, and brackets 2 previously provided at both ends of the beams are completely fixed to the walls b and b'.

Next, between the above-mentioned cross beams 1 and 1a, supports 3, 3a, 3b and 3c of appropriate length are installed near the four corners, respectively.
An elevating body c is provided which consists of an upper pallet 4 and a lower pallet 5 which are connected to each other.

Next, chains 6, 6a, 6b are installed at approximately four corners of the lower pallet 5 constituting the elevating body c.
and one end of 6c is fixed.

In the case of the drawing embodiment, the chains 6, 6a, 6
b and 6c are not completely fixed, but are fixed via an adjuster star 7 for length adjustment, so that the horizontal adjustment of the elevating body c is easy. 8 in the figure is a chain guide.

Next, the chains 6, 6a, 6b and 6c
the upper cross beams 1 and 1 of the chain guide 8, respectively.
It is suspended from guides provided inside each of the parts a, specifically sprockets 9, 9a, 9b and 9c, and can be wound up evenly by a motor 10.

In the case of the embodiment shown in the drawings, a drive shaft 11 is provided between one end of the cross beams 1 and 1a, that is, at a position where it does not interfere with the elevating body c, and a chain 6 suspended from the sprockets 9, 9a, 9b, and 9c is provided at both ends of the drive shaft 11. , 6a, 6b, and 6c are engaged with each other, and the drive sprocket 13 is fixed at an appropriate position on the drive shaft 11, and the drive sprocket 13 and the lower surface of the cross beam 1 are connected to each other for lifting and lowering. A chain 15 is suspended between drive rotating shafts 14 of a motor 10 provided at a position where it does not interfere with the lifting and lowering of the body c.

The motor 10 is equipped with a speed reducer and a brake, and is capable of forward and reverse rotation.
Chains 6, 6a, 6b, and 6c are constructed so as not to come off from chains 2b and 12c. 1 in the diagram
Reference numeral 6 denotes an auxiliary column provided as necessary to prevent deflection of the cross beams 1 and 1a.

In the double-level parking device having the above configuration, the fall prevention device of the present invention is provided at approximately the four corners of the elevating path of the elevating body c, at a position that does not interfere with the ascent and descent of the elevating body c, and moreover, the fall prevention device of the present invention is provided on the lock lever described later. Only 22 is configured to protrude into and return to the elevating passage of the elevating body c.

Further, the installation height of the lock lever 22 is such that it is located below the lower pallet 5 when the elevating body c is raised and lowered.

The details are shown in FIGS. 3 and 4.

In Figure 3, the fixed part side, specifically the cross beam 1
The base 17 is attached to the auxiliary pillar 16 mounting part of (and 1a).
The base 17 is equipped with all the equipment.

That is, the solenoid 18 is placed above the base 17.
and limit switches 19 are provided side by side, and brackets 20, 20a are provided below the solenoid 18 on the base 17 at an appropriate interval.
The lock lever 22 is locked by the pin 21 between 0 and 20a.
Further, the connecting plates 23, 23a are fixed to the lower end of the plunger 18a of the solenoid 18 at an appropriate interval with a pin 24 extending from the limit switch 19 side, and the connecting plates 23, 23a are fixed between the connecting plates 23, 23a. Position the lock lever 22 and connect the connecting plate 2.
The lower ends of the lock levers 3 and 23a are fixed to the elevating body c side from the fixed portion of the lock lever 22 by split pins 25.

In the above configuration, the extension of the pin 24 is positioned below the limit switch 19 in advance, and the plunger 1 is controlled by the solenoid 18.
When the pin 8a is pulled upward, the extension of the pin 24 contacts the movable contact 19a of the limit switch 19, so that an electrical signal can be obtained from the limit switch 19. That is, the mounting position of the limit switch 19 with respect to the solenoid 18 is adjusted.

Further, the rear end 22a of the lock lever 22 is shaped so that it comes into contact with the base 17 when the lock lever 22 protrudes, that is, when it is located in the ascending and descending path of the elevating body c, and the base 17 acts as a stopper. .

Furthermore, in the present invention, a hexagonal bolt 28 is inserted near the lock lever fixing part of the bracket, and a spring 26 is installed between the connecting plate 23 side end of the hexagonal bolt 28 and the pin 24 connecting the plunger 18 and the connecting plate 23.
The plunger 18a is configured to be pulled downward at all times. Therefore, the spring 26
is the bracket 20 and connecting plate 23.
It is something that is placed in between and cannot be removed.

Further, a split pin 27 that is inserted into the pin 21 that fixes the lock lever 22 is fitted to the other end of the hexagonal bolt 28, and a nut 30 is screwed to the inner end. In the figure, 29 is a side beam of the lower pallet 5 that constitutes the elevating body c.

In the present invention having the above structure, when the solenoid 18 is not energized, the plunger 18a is pulled downward by the force of the spring 26, and the lock lever 2
2 protrudes into the solid line position in FIG. 3, that is, into the elevating path of the elevating body c.

When the elevating body c rises, it comes into contact with the side beam 29 of the lower pallet 5 and slides on the side surface of the side beam 29 while being released upward, and when the side beam 29 passes, it returns to its original position. do. When the lifting switch etc. is turned on, the solenoid 18 is energized, the lock lever 22 is temporarily retracted, and the upper limit detection switch (not shown) of the elevating body c cuts off the energization to the solenoid 18, as shown in FIG. It may be made to protrude into the solid line position, that is, into the elevating path of the elevating body c.

Next, when lowering the elevating body c, when the lowering switch (not shown) is turned on and the solenoid 18 is energized, the plunger 18a is pulled upward and the locking lever 22 is locked by the connecting plates 23, 23a as shown by the two-dot chain line in the third figure. a position such as
That is, the elevating body c is retracted from the elevating passageway, and the elevating body c can be lowered, but in the present invention, it can be easily confirmed by the limit switch 19 that the lock lever 22 is retracted.

That is, when the plunger 18a and the connecting plates 23, 23a are pulled upward,
A pin 24 fixed therebetween contacts the movable contact 19a of the limit switch 19, and an electrical signal from the limit switch 19 is obtained.

As described above, according to the present invention, the pin 24 that fixes the plunger 18a and the connecting plates 23, 23a can be used for controlling the limit switch 19, and the inner end of the hexagonal bolt 28 provided at the appropriate position of the bracket 20 can be used to control the limit switch 19. A spring 26 is fitted to the outer end of the lock lever 26, and a cotter pin 27 that is inserted into the pin 21 that fixes the lock lever 22 to the brackets 20, 20a is fitted to the outer end. Even when the split pin 27 and the pin 21 are retracted further or returned to protrude into the elevator passage, the split pin 27 and the pin 21 are not rotated.
The pin 21 does not fall out at all, making it safe and allowing the entire structure to be constructed simply.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is a perspective view of a two-stage parking device, Fig. 2 is a side view thereof,
FIG. 3 is a side view of the fall prevention device of the present invention, and FIG. 4 is a front view thereof. 1, 1a... horizontal beam, 3, 3a, 3b, 3c...
Pillar, 4... Upper pallet, 5... Lower pallet, 6, 6a, 6b, 6c... Chain, 9, 9
a, 9b, 9c... Sprocket, 10... Motor, 11... Drive shaft, 12, 12a, 1
2b, 12c... Winding sprocket, 17...
Base, 18... Solenoid, 19... Limit switch, 20, 20a... Bracket, 21...
...Pin, 22...Lock lever, 23, 23a...
...Connecting plate, 24...Pin, 2
5, 27...Cotter pin, 26...Spring, 28
...hexagonal bolt, 30...nut, c...lifting body.

Claims (1)

[Scope of utility model registration request] A solenoid and a limit switch are arranged side by side on the fixed part side slightly below the upper limit position of the elevating body, and a bracket is provided below the solenoid at an appropriate interval. A lock lever is fixed between the brackets with a pin, and the solenoid is placed below the solenoid. Connecting plates located on both sides of the lock lever are fixed to the plunger with pins, one end of the pin is extended to the movable contact section below the limit switch, and the connecting plate is fixed to the lifting body side from the fixing section of the lock lever. Furthermore, a bolt is inserted into the bracket near the lock lever fixing part, and a spring is provided between the connecting plate side end of the bolt and the pin connecting the plunger and the connecting plate, and the other end of the bolt is fitted with the lock lever. A fall prevention device for an elevating object, characterized in that a cotter pin is inserted into the pin to which the elevating object is fixed.